Does this make sense as a rule of dining etiquette?

I have been trying not to eat so fast, and this has gotten me thinking about eating.

It seems that it should be regarded as impolite to pick up a piece of food and move it in a straight line to the mouth. Shouldn’t we lift the fork or spoon perpendicularly from the plate until the food is at the same height as the mouth, and then move it to the mouth along a line parallel to the table?

Wouldn’t that be less glutinous and more likely to catch any food that falls into the plate rather than on the table or on clothing?